This occurrence is located just south of Mitchell Glacier in an area underlain by Lower Jurassic Unuk River Formation rock, Hazelton Group. This formation is composed primarily of intermediate to mafic pyroclastics and flows with minor interbeds of siltstone and wacke. The north trending Brucejack Fault System cuts the country rock within a kilometre to the east of the occurrence. A large gossanous pyrite-quartz-sericite alteration zone covers much of the area with the rocks being locally foliated to schistoses in texture (Open File 1988-4).

Numerous small pieces of pyrite-barite float, hosting small amounts of galena, were found near a quartz-barite-pyrite lens that occurs within chlorite schist. This lens is 0.3 metres wide by 6 metres long (Assessment Report 499).